Read National Arthritis Data Workgroup ICD-9-CM diagnostic codes for arthritis and other rheumatic conditions text version

National Arthritis Data Workgroup ICD-9-CM diagnostic codes for arthritis and other rheumatic conditions. In 1994, the National Arthritis Data Workgroup (NADW) defined arthritis and other rheumatic conditions using a set of ICD-9-CM diagnostic codes that represented all potential diagnoses for arthritis and other rheumatic conditions (Table 1. See Arth Care & Res 1995;8:203-211; MMWR 1994;43:433-438). This has provided a standard definition for arthritis and other rheumatic conditions to use when analyzing data having ICD-9-CM coding. For analytic and descriptive purposes, these codes were grouped into 10 categories using input from several clinicians and arthritis researchers (Table 2). Table 1. ICD-9-CM Code * 710 711 712 713 714 715 716 719 720 721 725 726 727 728 729.0 729.1 729.4 Disease or Condition Selected codes from ICD9-CM Chapter 13 ­ Diseases of the musculoskeletal system and connective tissue (710-739) Diffuse diseases of connective tissue Infectious arthropathies Crystal arthopathies Arthopathy associated with other disorders classified elsewhere Rheumatoid arthritis/inflammatory arthropathies Osteoarthritis and allied disorders Other/unspecified arthropathies (e.g. allergic arthritis, transient arthropathy) Other/unspecified joint disorders (e.g. joint effusion, walking difficulty) Ankylosing spondylitis/inflammatory spondylopathies Spondylosis and allied disorders Polymyalgia rheumatica Peripheral enthesopathies and allied conditions Other disorders synovium/tendon/bursa (e.g. tenosynovitis, synovial cyst) Disorders of muscle/ligament/fascia Rheumatism, unspecified/fibrositis Myalgia/myosisits unspecified Fascitis, unspecified Selected codes from other ICD9-CM chapters Syphilis of muscle Syphilis of synovium/tendon/bursa Gonoccocal infection of joint Reiter's Disease Behcet's Syndrome Gout Other disorders of purine/pyrimidine metabolism disorder Allergic Purpura Cauda Equina Syndrome Brachial plexus lesion/thoracic outlet syndromes

95.6 95.7 98.5 99.3 136.1 274 277.2 287.0 344.6 353.0

354.0 355.5 357.1 390 391 437.4 443.0 446 447.6 696.0

Carpal Tunnel Syndrome Tarsal Tunnel Syndrome Polyneuropathy - collagen vascular disease Rheumatic fever - no heart involvement Rheumatic fever - heart involvement Cerebral arteritis Raynaud's syndrome Polyarteritis nodosa and allied conditions Arteritis, unspecified Psoriatic arthropathy

* International Classification of Diseases, Ninth Revision, Clinical Modification. Note that the use of 3 digit codes is intended to include all subdivided 4 and 5 digit codes, and that the use of 4 digit codes is intended to include all subdivided 5 digit codes. Excludes ICD9-CM code 719.1. Excludes ICD9-CM codes 728.4 and 728.5.

Table 2. 10 Diagnostic Categories of the NADW ICD-9-CM codes for arthritis and other rheumatic conditions

CATEGORY Soft tissue disorders (excluding back) INCLUSIONS 726 ­ Peripheral enthesopathies and allied disorders 727 ­ Other disorders of synovium/tendon/bursa 728.0-.3, .6­.9 ­ Disorders of muscle/ligament/fascia 729.0 ­ Rheumatism, unspecified and fibrositis 729.4 ­ Fascitis, unspecified 716.1, .3-.6 ­.9 - Other unspecified arthropathies 719.0, .4-.9 ­ Other and unspecified joint disorders

Joint pain, effusion and other unspecified joint disorders

Osteoarthritis and allied disorders Rheumatoid arthritis Myalgia/myositis unspecified Carpal tunnel syndrome Spondylosis/spondylitis and allied disorders

715 ­ Osteoarthritis and allied disorders 714 ­ RA and other inflammatory polyarthropathies 729.1--Myalgia and myositis unspecified 354.0 ­ Carpal tunnel syndrome 720 ­ AS/inflammatory spondylopathies 721 ­ Spondylosis and allied disorders 99.3 ­ Reiter's Disease 696.0 ­ Psoriatic arthopathy 710 - Diffuse connective tissue disease 274 ­ Gout 712 ­ Crystal arthropathies 711 ­ Arthritis associated with infections 713 ­ Arthropathy associated with disorders classified elsewhere 716.0, .2, .8 ­ Specified arthropathies 719.2, .3 ­ Specified joint disorders 725 ­ Polymyalgia rheumatica 95.6 ­ Syphilis of muscle 95.7 ­ Syphilis of synovium/tendon/bursa 98.5 ­ Gonococcal infection of joint 136.1 ­ Behcet's syndrome 277.2 ­ Other disorders purine/pyrimidine metabolism 287.0 ­ Allergic purpura 344.6 ­ Cauda equina syndrome 353.0 ­ Brachial plexus/thoracic outlet lesions 355.5 ­ Tarsal tunnel syndrome 357.1 ­ Polyneuropathy in collagen vascular disease 390 ­ Rheumatic fever w/o heart disease 391 ­ Rheumatic fever w/heart disease 437.4 ­ Cerebral arteritis 443.0 ­ Raynaud's syndrome 446 ­ Polyarteritis nodosa and allied conditions 447.6 ­ Arteritis, unspecified

Diffuse connective tissue disease Gout and other crystal arthropathies

Other specified rheumatic conditions

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National Arthritis Data Workgroup ICD-9-CM diagnostic codes for arthritis and other rheumatic conditions

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